CN202134390U - Voltage transformer used in railway traction substation - Google Patents
Voltage transformer used in railway traction substation Download PDFInfo
- Publication number
- CN202134390U CN202134390U CN201120241612U CN201120241612U CN202134390U CN 202134390 U CN202134390 U CN 202134390U CN 201120241612 U CN201120241612 U CN 201120241612U CN 201120241612 U CN201120241612 U CN 201120241612U CN 202134390 U CN202134390 U CN 202134390U
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- China
- Prior art keywords
- applied voltage
- traction power
- instrument transformer
- power transformation
- transformation applied
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- Expired - Fee Related
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Abstract
The utility model relates to high-voltage measurement or relay protection equipment for a railway traction power supply system, in particular to a voltage transformer used in a railway traction substation. The voltage transformer comprises an iron core, primary windings, secondary windings, primary insulation columns and a secondary wiring board which are cast into an integrated structure through epoxy resin to form a main insulator to be integrally mounted on a flat plate base with mounting holes. The voltage transformer is characterized in that the two primary insulation columns are parallelly and vertically arranged at the upper parts of both the left side and the right side of the main insulator, a large cuboid is arranged in the middle of the main insulator, small cuboids are arranged on two sides of the main insulator, the upper part of the main insulator is in horizontal semi-cylindrical transitional form, the two primary insulation columns are cylinders with umbrella skirts uniformly distributed on the surfaces, and transitional round corners are formed at the transitional parts between the large cuboid and the small cuboids of the main insulator. The voltage transformer provided by the utility model has the advantages of small size, flexibility in installation, stable insulation property, high stain-resistant level, over-voltage resistance and shock resistance.
Description
Technical field
The utility model relates to railway traction power supply system high-tension measurement or relay protection device, specifically a kind of rail traction power transformation applied voltage instrument transformer.
Background technology
Traction Substation of Electric Railway is the alternating current that the 110KV of three-phase (or 220KV) High Level AC Voltage is transformed to two single-phase 27.5KV; Transmit electric power to railway contact line then, the power supply power for traction, the voltage transformer in the electric substation is to get in touch the electric equipment that once reaches secondary; It mainly is function as voltage measurement, supervision and realization relaying protection; And its design level is in the domestic seventies, and version is to adopt the semi-closed structure that exposes unshakable in one's determination, and it is more less than distance that product is creepage; Insulating reliability is poor; Based on the railway substation working condition have long-pending dirt, moisture, condensation, earth fault is many, switching overvoltage is high, overvoltage is frequent, and faults such as pollution flashover, insulation breakdown discharge often take place easily, so the reliability of supplying power for further rail traction; Must develop the suitable voltage transformer of a kind of suitable rail traction electric substation, the whole railway substation device fabrication level that improves.
The utility model content
The purpose of the utility model is to above deficiency, provide a kind of that the epoxide resin vacuum cast forms for adopting, volume is little, flexible for installation, insulation is reliable, the dirty grade height of resistant, anti overvoltage, shock proof rail traction power transformation applied voltage instrument transformer.
The utility model for realizing the technical scheme that above-mentioned purpose adopted is: a kind of rail traction power transformation applied voltage instrument transformer; Comprise iron core, winding, secondary winding, primary insulation post, secondary connection platform, the employing poured with epoxy resin is an integral structure, is the main insulation body; Integral installation is on a flat base that has an installing hole; It is characterized in that two on the top of the main insulation body left and right sides is parallel angle and vertically is provided with two primary insulation posts, is big cuboid in the middle of the main insulation body; Both sides are little cuboid forms, and top is the semicylinder interim form of traverse.
Said two primary insulation posts are the evenly cylinder of distribution full skirt of surface.
The big cuboid of said main insulation body and little cuboid transition position are provided with knuckle.
Has eccentric full skirt on the semicylinder of said main insulation body top.
Said eccentric full skirt cross section is trapezoidal.
Said integral structure surrounded surface is uniformly distributed with a plurality of full skirts.
Said full skirt is square.
Said secondary connection platform is positioned at bottom, integral structure left side, and the secondary connection lid adopts transparent material to process, and has band lead sealing screw on it.
The utlity model has following advantage:
1, volume is little, flexible for installation: products perfection structural design, structure are compact more, and two primary insulation posts are that top is the cylindrical form of equally distributed full skirt, guarantee to connect with the smooth of high voltage bus, can be installed on flexibly in the switch cubicle;
2, insulation is stable, the dirty grade of resistant is high: adopt epoxide resin vacuum to water and into a single integrated structure; It is reliable and stable to insulate; Main insulation body surrounded surface is uniformly distributed with that to have a plurality of cross sections on a plurality of square full skirts and the top semicylinder be trapezoidal eccentric full skirt; Effectively increase the product surface creepage distance, can arc sudden strain of a muscle, discharge and Fault of Insulating Breakdown not take place because of the dust dirt in the long-time running, it is more stable to insulate;
3, anti overvoltage, shock resistance: the inner high-quality silicon steel sheet permeability magnetic material that adopts of product, the low magnetic density design has higher anti overvoltage ability; The whole poured with epoxy resin that adopts forms; Under the contact line overvoltage frequent impact situation, faults such as insulation damages can not take place, security performance is more reliable.
Description of drawings
Fig. 1 is the utility model external structure front view;
Fig. 2 is the utility model external structure vertical view;
Fig. 3 is the utility model external structure left view;
Fig. 4 is the utility model internal structure sketch map.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
A kind of rail traction power transformation applied voltage instrument transformer; Comprise iron core 1, winding 2, secondary winding 3, primary insulation post 4, secondary connection platform 5, the employing poured with epoxy resin is an integral structure, is main insulation body 8; Integral installation is on a flat base 6 that has an installing hole; It is characterized in that two on the top of main insulation body 8 left and right sides is parallel angle and vertically is provided with two primary insulation posts 4, is big cuboid in the middle of the main insulation body 8; Both sides are little cuboid forms, and top is the semicylinder interim form of traverse.Said two primary insulation posts 4 are the evenly cylinder of distribution full skirt 7 of surface.The big cuboid of said main insulation body 8 and little cuboid transition position are provided with knuckle 10.Has eccentric full skirt 9 on the said main insulation body 8 top semicylinders.Said eccentric full skirt 9 cross sections are trapezoidal.Said integral structure surrounded surface is uniformly distributed with a plurality of full skirts 11.Said full skirt 11 is square.Said secondary connection platform 5 is positioned at bottom, integral structure left side, and secondary connection lid 12 adopts transparent material to process, and has band lead sealing screw on it.
Product secondary winding 3 and winding 2 are concentric to be sleeved on iron core 1 post after on the insulation framework, through being fixed in the casting mold after insulation and the buffering wrapping, adopts the epoxide resin vacuum cast cured explosive to form.Last integral installation is on a flat base 6 that has an installing hole.Two primary insulation posts 4 are the top that parallel angle vertically is arranged at main insulation body 8 left and right sides for top is the cylindrical form of equally distributed full skirt 7.Not only guarantee to connect with the smooth of high voltage bus, and guaranteed in the use alternate have enough alternate air insulations apart from and enough alternate surface creepage distances, it is more reliable to insulate.Main insulation body 8 is big cuboid and both sides are little cuboid forms in the middle of being shaped as; Its top is the semicylinder interim form of traverse; Profiling and optimized Structure Design; Guarantee to have evenly abundant insulation distance around the Inside coil, and can be because of the too much dust dirt of long-term accumulation in the utilization process.Having a plurality of cross sections on the main insulation body 8 top semicylinders is trapezoidal eccentric full skirt 9, effectively increases alternate surface creepage distance.Size cuboid transition position is provided with big knuckle 10, guarantees that product has enough mechanical strengths and internal electric field optimization distributes.The integral structure surrounded surface is uniformly distributed with a plurality of square full skirts 11, guarantees product high pressure surface creepage distance over the ground; Secondary connection platform 5 is positioned at bottom, integral structure left side, and secondary connection lid 12 adopts transparent material to process, and has band lead sealing screw on it, with the whole epoxy resin disposal molding that adopts of main insulation body, has the effect of dustproof and waterproof.
The utility model rail traction transformation applied voltage instrument transformer is fully according to national standard and rail traction power transformation technology and a kind of new product of design; Employing rolls iron core; Utilize the electromagnetic conversion principle; Make secondary voltage can reflect the situation of change of primary voltage exactly, use as voltage measurement and relaying protection.Adopt the epoxide resin vacuum cast to form; Product has that volume is little, flexible for installation, insulation is reliable, the dirty grade height of resistant, anti overvoltage, shock proof characteristics; Be suitable for China railways traction substation environment fully and use, the whole railway substation device fabrication level that improves.
Claims (8)
1. rail traction power transformation applied voltage instrument transformer; Comprise iron core (1), a winding (2), secondary winding (3), primary insulation post (4), secondary connection platform (5), the employing poured with epoxy resin is an integral structure, is main insulation body (8); Integral installation is on a flat base (6) that has an installing hole; It is characterized in that two on the top of main insulation body (8) left and right sides is parallel angle and vertically is provided with two primary insulation posts (4), is big cuboid in the middle of the main insulation body (8); Both sides are little cuboid forms, and top is the semicylinder interim form of traverse.
2. rail traction power transformation applied voltage instrument transformer according to claim 1 is characterized in that, said two primary insulation posts (4) are the evenly cylinder of distribution full skirt (7) of surface.
3. rail traction power transformation applied voltage instrument transformer according to claim 1 is characterized in that the big cuboid of said main insulation body (8) and little cuboid transition position are provided with knuckle (10).
4. rail traction power transformation applied voltage instrument transformer according to claim 1 is characterized in that, has eccentric full skirt (9) on the semicylinder of said main insulation body (8) top.
5. rail traction power transformation applied voltage instrument transformer according to claim 4 is characterized in that said eccentric full skirt (9) cross section is trapezoidal.
6. rail traction power transformation applied voltage instrument transformer according to claim 1 is characterized in that said integral structure surrounded surface is uniformly distributed with a plurality of full skirts (11).
7. rail traction power transformation applied voltage instrument transformer according to claim 6 is characterized in that said full skirt (11) is square.
8. rail traction power transformation applied voltage instrument transformer according to claim 1 is characterized in that, said secondary connection platform (5) is positioned at bottom, integral structure left side, and secondary connection lid (12) adopts transparent material to process, and has band lead sealing screw on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120241612U CN202134390U (en) | 2011-07-08 | 2011-07-08 | Voltage transformer used in railway traction substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120241612U CN202134390U (en) | 2011-07-08 | 2011-07-08 | Voltage transformer used in railway traction substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134390U true CN202134390U (en) | 2012-02-01 |
Family
ID=45523152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120241612U Expired - Fee Related CN202134390U (en) | 2011-07-08 | 2011-07-08 | Voltage transformer used in railway traction substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134390U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325558A (en) * | 2013-07-17 | 2013-09-25 | 国家电网公司 | High-altitude high-capacity indoor all-insulation voltage transformer |
| CN104124047A (en) * | 2013-04-25 | 2014-10-29 | 国家电网公司 | Current transformer and current transformer base |
| US11270830B2 (en) | 2015-08-10 | 2022-03-08 | Abb Schweiz Ag | Double-pole voltage transformer |
-
2011
- 2011-07-08 CN CN201120241612U patent/CN202134390U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124047A (en) * | 2013-04-25 | 2014-10-29 | 国家电网公司 | Current transformer and current transformer base |
| CN103325558A (en) * | 2013-07-17 | 2013-09-25 | 国家电网公司 | High-altitude high-capacity indoor all-insulation voltage transformer |
| CN103325558B (en) * | 2013-07-17 | 2015-10-21 | 国家电网公司 | The all insulation voltage transformer that a kind of high-altitude high-capacity is indoor |
| US11270830B2 (en) | 2015-08-10 | 2022-03-08 | Abb Schweiz Ag | Double-pole voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20200708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |